PPT 2011 for Mac color bug

Microsoft PowerPoint 2011 for Mac has an annoying bug: when you apply a colour to a font, it comes out slightly differently than when you apply the exact same colour to a shape. One: it looks bad on slides, two: it gives surprises when you open a PowerPoint file created on a Mac on a Windows machine (which does not have the same issue).

When I posted about this somewhere on a Microsoft forum I got the response that this was done on purpose; to make text readable against a coloured background. This does not make sense, if I want to make the text readable, I will put in a different colour myself, and definitely not the one that Microsoft is using. See below, the letter colour is a completely different type of blue than the background.

(Geek alert). There is a complicated way to get around it. Type some text, change it to the desired colour. Now select the desired text (not the entire sentence) and bold it: the right colour appears... But, as soon as you do anything else to your text box, the wrong colour gets put in. Annoying....